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Environmental monitoring of the North Porto Alegre landfill, Brazil

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In 1990, the administration of Porto Alegre, Brazil, declared a state of public emergency because its large landfills were not fit for operation. Almost 1 000 tid of domestic, industrial, and hospital wastes were being sent to the Porto Alegre landfill. Potential hazards to the local water resources have resulted because the landfill, besides receiving these wastes indiscriminately, was not equipped with a drainage or leachate treatment system. In addition, the waste disposal was not conducted orderly, thus rendering monitoring of the area practically unfeasible. Because of the difficulties in finding new suitable sites for waste disposal, the city administration opted to recover its northern landfill using an accelerated solid waste stabilization technique. This work assesses the results from the monitoring during the first 3 years of implementation of this technique. Chemical oxygen demand (COD), biochemical oxygen demand (BOD5), dissolved oxygen (DO), pH, nitrogenous series, phosphate, conductivity, alkalinity, total residue, and heavy metals (Al, Ag, Ba, Cd, Cu, Cr, Fe, Hg, Mn, Ni, Pb, and Zn) were determined in the surface water, groundwater, and leachate. Biogas samples taken directly from the flares installed in the various cells were analyzed for CH4, CO2, CO, H2, O2, and N2.
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Keywords: BIOREMEDIATION; BRAZIL; GROUNDWATER; LANDFILL; LEACHATE; MONITORING

Document Type: Research Article

Publication date: 1997-09-01

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  • Water Environment Research (WER) is published monthly, including an annual Literature Review. A subscription to WER includes access to the latest content back to 1992, as well as access to fast track articles. An individual subscription is valid for 12 months from month of purchase.

    Water Environment Research (WER) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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